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| Advance Product Information November 16, 2005 CATV Ultra-Linear Power Amp * * * * * * * * * TGA2801B-SG Key Features and Performance Flat Gain Ultra-Low Distortion (47dBm IP3 typ.) Wide Bandwidth (40MHz-1GHz) Low DC Power Consumption Single Supply Bias (+12V) Surface Mount Package High Power Compression (P1dB 28.5 dBm typ.) Unconditionally Stable Proven GaAs Technology TGA2801B Gain w/External Balun Effects Removed Top View Bottom View Description The TriQuint TGA2801B is an ultra-linear, packaged power amplifier which operates from 40MHz to 1000MHz. The amplifier is packaged in a standard 16 lead SOIC package. The amplifier provides a flat gain along with ultra-low distortion. It also provides a high output power with a low DC power consumption. This amplifier is ideally suited for use in CATV distribution systems or other applications requiring high output powers and extremely low distortion. Evaluation Boards are available upon request. Lead-free and RoHS compliant 14 13 S21 (dB) 12 11 10 Primary Applications * * * HFC Nodes CATV Line Amplifiers Head End Equipment TGA2801B Distortion 114ch 44dBmV Flat Vd=12V, Id=425mA -50 9 0 200 400 600 800 1000 Frequency (MHz) TGA2801B Noise Figure 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 100 200 300 400 500 600 700 800 900 100 Frequency (MHz) 0 Distortion (dBc) -55 -60 -65 -70 -75 -80 0 100 200 300 400 500 600 700 800 CTB XMOD Frequency (MHz) Note: This device is early in the characterization process prior to finalizing all electrical specifications. Specifications are subject to change without notice. NF (dB) TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 1 Advance Product Information November 16, 2005 TGA2801B-SG Maximum Ratings 1/ Symbol VDD IDD PIN TASSY TSTG TCASE 1/ Parameter Bias Supply Voltage Bias Supply Current RF Input Power Assembly Temperature (30 seconds max) Storage Temperature Package Operating Temperature (Heat Slug) Min 0 Max 15 615 70 260 Units V mA dBmV C C C Notes 2/ -65 -40 150 100 These values reflect maximum operable values for this device. Operating above the recommended values may directly affect MTTF. Total Current 2/ DC Specifications Symbol VDD IDD VG1 VG2 Vout1 Vout2 Parameter Bias Supply Voltage Bias Supply Current Gate 1 Voltage (Pin 7) Gate 2 Voltage (Pin 2) RF Output 1 Voltage (Pin 14) RF Output 2 Voltage (Pin 11) Typ 12 425 0.33 4.15 VDD VDD Unit V mA V V V V TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 2 Advance Product Information November 16, 2005 TGA2801B-SG RF Specifications TA=25C, VDD=12V Symbol BW S21 GF NF P1dB IP3 CTB CSO XMOD IRL ORL IDD 1/ 2/ 3/ 4/ Parameter Bandwidth Gain 1/ Gain Flatness 1/ Noise Figure 1dB Gain Compression @ 1GHz Two-Tone, Third-Order Intercept (625 & 700MHz) Composite Triple Beat Distortion 2/ Composite Second Order Distortion 2/ Cross Modulation 2/ Input Return Loss 1/ 3/ Output Return Loss 1/ 3/ Drain Current 4/ Min 40 Typ 12.0 0.3 2.6 28.5 47 -71 -71 -60 22 22 425 Max 870 Units MHz dB dB dB dBm dBm dBc dBc dBc dB dB 450 mA Measured performance of chip alone. Balun effects have been removed. 112-Channel flat, +44dBmV/channel output Using application circuit on last page Increasing drain current will improve linearity of device TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 3 Advance Product Information November 16, 2005 Typical Measured S-Parameters Using Application Circuit (includes effects of external baluns) 14 TGA2801B-SG 13 S21 (dB) 12 11 10 9 0 200 400 600 800 1000 Frequency (MHz) 0 -5 S12 (dB) -10 -15 -20 -25 0 200 400 600 800 1000 Frequency (MHz) TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 4 Advance Product Information November 16, 2005 Typical Measured S-Parameters Using Application Circuit (includes effects of external baluns) 0 TGA2801B-SG -10 S11 (dB) -20 -30 -40 -50 0 200 400 600 800 1000 Frequency (MHz) 0 -10 S22 (dB) -20 -30 -40 -50 0 200 400 600 800 1000 Frequency (MHz) TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 5 Advance Product Information November 16, 2005 TGA2801B-SG Mechanical Specifications 0.406 0.056 0.296 0.184 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 TriQuint Semiconductor Texas : (972)994 8465 LCI PA - 2001 TGA2801B TGA2801B 0.050 HEAT SLUG 0.234 0.087 0.407 0.094 0.016 0.002 Fax (972)994 8504 Web: www.triquint.com 6 Advance Product Information November 16, 2005 TGA2801B-SG 0.406 Pinout 0.296 1 2 16 15 LCI PA - 2001 TGA2801B 3 4 5 6 7 8 14 13 12 11 10 9 Pin Description Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Description GND Gate 2: Open Circuit on PC Board RF Input 1 GND GND RF Input 2 Gate 1: Current Adjust R1 = 274 to GND GND GND VDD RF Output 2 GND GND RF Output 1 VDD GND TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 7 Advance Product Information November 16, 2005 Recommended Assembly TGA2801B-SG Component Description Ref C1 C2 C3 C4 C5 - C8 L1 L2 R1 T1 T2 1/ Description 0.01F Capacitor 0.01F Capacitor 300pF Capacitor 300pF Capacitor 1.0pF - 2.0pF Capacitor 3/ 390nH Inductor 390nH Inductor Current Adjust 2/ R1 = open circuit Balun 1/ Balun 1/ Balun performance impacts amplifier return losses and gain. Best performance can be achieved by winding 34 or 36 gauge bifilar wire around a small binocular core made from low-loss magnetic material. Suitable wire may be obtained from MWS Wire Industries. Core vendors include Ferronics, Fairrite, TDK, and Micrometals. Alternatively, off-the-shelf baluns can be purchased from a number of vendors including Mini-Circuits (ADTL1-10-75-1 (used for this data), ADTL1-18-75), M/A-COM (ETC1-113), and Pulse Engineering (CX2071). 2/ 3/ Current can be adjusted by either changing the resistor value or forcing a voltage on pin 7. Tunes out balun inductance. Selected for best return loss. TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 8 |
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